Recently, DNV, together with eight companies across the European offshore wind supply chain, released a research report outlining a clear cost-reduction roadmap for Europe’s long-struggling offshore wind sector: through industry-wide standardization and industrial upgrading, the lifetime levelized cost of energy (LCoE) for offshore wind in the North Sea could fall by up to 28% by 2050.
Many may wonder: does “standardization” simply mean unifying technical specifications? It means far more than that. Historically, European offshore wind has operated more like a custom-engineering model: each project involves bespoke turbine design modifications, customised foundation and grid interface adaptations, and independent construction plans. This leaves supply chains unable to plan for volume production, creates volatile capacity utilisation, and inevitably keeps costs high.
In essence, DNV’s standardization agenda aims to shift offshore wind from a craft-based model to an industrial mass-production model, covering four core dimensions: First, mature turbine platform standardization: reducing project-specific custom modifications to enable volume production across the supply chain. Second, predictable project pipelines: stable government auction cycles and permitting timelines give businesses the confidence to plan capacity in advance. Third, unified supply chain interfaces: aligned standards for turbines, foundations and installation equipment cut on-site rework and adaptation costs. Fourth, standardized construction and O&M processes: reducing waste, rework and inefficient operations.
The study models cost-reduction potential under three scenarios: Under the business-as-usual scenario with small-batch production and frequent design changes, costs would fall by only around 5% by 2035. With the same market growth rate but extended production runs for turbine platforms, the reduction widens to 14% by 2035 and 25% by 2050. In the high-deployment scenario with sustained capacity expansion and stable project pipelines, costs would drop by roughly 19% by 2035 and up to 28% by 2050.
The study uses 15 MW turbines on monopile foundations as its reference platform, but makes clear this is not presented as the optimal turbine size, nor does it limit future turbine technology development.
The bulk of cost savings come from capital expenditure reductions, led by turbine procurement and project development costs, with installation and foundation costs delivering additional savings. Meanwhile, stable design platforms improve equipment reliability and energy output, while shorter construction timelines bring projects online faster to generate revenue earlier.
The report also highlights the industry’s core pain point: while Europe’s existing capacity is broadly sufficient to meet near-term demand for 15 MW turbines, the most pressing risk is underutilisation. Stop-start project pipelines make suppliers hesitant to expand capacity aggressively, leaving them unable to respond quickly when demand surges. And in a high-deployment scenario, ports and installation capacity would emerge as new bottlenecks.
To address this, the report lays out clear action points: governments should translate wind targets into stable auction schedules and project timelines to provide long-term certainty for the industry; developers and turbine manufacturers should align on design interface standards at an early stage; and suppliers should first focus on resolving bottlenecks in ports and installation capacity before pursuing broad capacity expansion.
Ultimately, the high cost of European offshore wind is not purely a technical issue – to a large extent, it stems from efficiency losses caused by supply chain fragmentation. The 28% cost-reduction potential is far from out of reach, but it requires the entire industry to shift from working in silos to standardised collaboration, and unlock the scale efficiencies that come with a mature industrial sector.
